cik_cp_gfx_resume(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cik_cp_gfx_resume — from the Kernel API Manual ✨

okay so bestie, this little cutie lives in section 9 of the Kernel API Manual, and honestly? it's giving "glow-up era for your GPU" 🦋 let me walk you through it, no cap.

🌸 NAME 🌸

cik_cp_gfx_resume — literally just setting up the gfx ring buffer registers 💖 that's it, that's the job.

🎀 SYNOPSIS 🎀

int cik_cp_gfx_resume (struct radeon_device *rdev );

(not me leaving the spacing exactly as-is because we do NOT touch the source, periodt 💅)

🦋 ARGUMENTS 🦋

  • rdev — a radeon_device pointer. that's the whole argument, she's low-maintenance 👑

⭐ DESCRIPTION ⭐

so what does she actually do? two things, and she does them well:

  1. Program the location and size of the gfx ring buffer — yeah, she's the one telling the hardware "here's where the ring lives and here's how big it is" 🎯
  2. Test it to make sure it's working — a little vibe check on the ring buffer, because we simply do not ship untested rings ✨

and the return value? 0 for success, error for failure. iconic, standard, we love to see it 💜

🔥 SEE ALSO 🔥

the kernel file herself lives at ./drivers/gpu/drm/radeon/cik.c 📁 and here's the entire friend group — every single one, no gatekeeping:

okay that's the page!! 🫶 quick little sign-off so you know where this came from: source is ./drivers/gpu/drm/radeon, dated October 2026, and it's serving the whole thing under Kernel API Manual energy. bye bestie, go program those ring buffers 💖✨🎀

📦 where this page comes from